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You searched for subject:(Truck platoon). Showing records 1 – 3 of 3 total matches.

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Penn State University

1. Wahba, Mohamed. Factors affecting the repeatability of the fuel consumption of a heavy-duty truck on urban and highway roads.

Degree: 2019, Penn State University

Trends in vehicle control show an increasing reliance on data aggregation and model-based predictive control to improve vehicle performance. The data and models that underly this trend, when analyzed experimentally on-the-road, allow discovery of route and location-specific effects that are not typically captured with generic vehicle or road representations. The influence of these effects on the performance, fuel economy, and stability of vehicle systems - particularly heavy vehicles used individually or in platoons - is poorly understood. This thesis examines the location-specific variations and influences that affect the performance in terms of fuel economy of heavy-duty trucks in urban and highway routes. The methods are motivated by experimental data collection from large numbers of repeated route traversals, with data including vehicle position, speed, acceleration, fuel use as well as drag reduction for following trucks in the case of platooning. These measurements allow the dynamic fuel consumption to be matched as a function of distance along the route as measured in a spatial s-coordinate. Testing situations include conventional single-vehicle operation across a wide range of urban, arterial, and highway situations, as well as the platooning of two trucks on an interstate highway. The results demonstrate that terrain and position information within a route offer significant predictions in terms of fuel economy in a vehicle. Additionally, infrastructure elements, specifically vehicle-to-infrastructure (V2I) communication can be used not only to monitor route information, but also used by the infrastructure to constrain or define behaviors of the vehicle. Moreover, the geometric definition of a road was seen to change the behavior of the stability of a truck platoon. Also, the drag reduction experienced by truck platoon is quantified using wind-tunnel experiments. Afterwards, a framework is proposed where the number of route traversals needed to define a route in terms of fuel use and vehicle speed is obtained based on statistical confidence. Finally, two commercial Volvo trucks are used to obtain location-specific fuel consumption and drag estimates when undergoing a fixed gap-distance in a truck platoon on Interstate-99. When the inter-vehicle platoon spacing was fixed to a one vehicle length, the fuel consumption reduction had a per-route average improvement of 13.6% on one route, and 9.1% on another route. Advisors/Committee Members: Sean Brennan, Dissertation Advisor/Co-Advisor, Sean N Brennan, Committee Chair/Co-Chair, Hosam Kadry Fathy, Committee Member, Stephanie Stockar, Committee Member, Eric Norman Johnson, Outside Member, Karen Ann Thole, Program Head/Chair.

Subjects/Keywords: V2I; Truck platoon

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6th Edition):

Wahba, M. (2019). Factors affecting the repeatability of the fuel consumption of a heavy-duty truck on urban and highway roads. (Thesis). Penn State University. Retrieved from https://submit-etda.libraries.psu.edu/catalog/16464mhw128

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16th Edition):

Wahba, Mohamed. “Factors affecting the repeatability of the fuel consumption of a heavy-duty truck on urban and highway roads.” 2019. Thesis, Penn State University. Accessed April 15, 2021. https://submit-etda.libraries.psu.edu/catalog/16464mhw128.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7th Edition):

Wahba, Mohamed. “Factors affecting the repeatability of the fuel consumption of a heavy-duty truck on urban and highway roads.” 2019. Web. 15 Apr 2021.

Vancouver:

Wahba M. Factors affecting the repeatability of the fuel consumption of a heavy-duty truck on urban and highway roads. [Internet] [Thesis]. Penn State University; 2019. [cited 2021 Apr 15]. Available from: https://submit-etda.libraries.psu.edu/catalog/16464mhw128.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Wahba M. Factors affecting the repeatability of the fuel consumption of a heavy-duty truck on urban and highway roads. [Thesis]. Penn State University; 2019. Available from: https://submit-etda.libraries.psu.edu/catalog/16464mhw128

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation


Texas A&M University

2. Pillay Thulaseedharan, Nandhu. Impact of Truck Platooning on Texas Bridges.

Degree: MS, Civil Engineering, 2020, Texas A&M University

United States trucking industry has an annual revenue output of $725 billion and is expected to grow by over 40 percent by 2045. The biggest challenges faced by the industry is the ever-increasing oil prices and the shortage of drivers to meet the growing demands. Truck platooning provides an efficient solution for both the challenges, which can be incorporated by equipping the existing inventory with modern sensors and systems. Platooning of trucks is the process by which two or more trucks move together along highways, maintaining a constant close space between them also allowing for significant fuel savings. The scope of this study is to research the potential impacts of truck platoons on the Texas bridge inventory. Bridges are one of the major elements of the highway infrastructure. Texas has the largest bridge inventory in the USA with over 55,000 bridges (more than 40 percentage older than 40 years). Due to the large inventory under consideration, a subset of bridges most likely support future truck platoons was selected (6,550 bridges). For each of these structures estimated truck platoon load ratings were calculated according to the original design methodology (allowable stress, load factor, or load and resistance factor) using NBI data elements along with assumptions from prior studies. The obtained load ratings from the older structures were then standardized to the load and resistance factor rating method. Then the bridges were prioritized considering the effects of the bridge condition. This identified the structures that require the earliest attention. In total, six different trucks at four different spacings under two- and three-truck platoons were analyzed as a part of the research. In addition, a cost benefit analysis is also performed with respect to truck platoons and bridges for better understanding of the benefits. Overall conclusions were drawn regarding the sensitivity of the original design methodology, bridge span length, truck type, truck spacing and number of trucks within a platoon on the bridge prioritization. In addition, a secondary benefit of the study is that a framework is presented for other bridge owners to prioritize their bridges that may be subjected to truck platoon or other heavy vehicle loading. Advisors/Committee Members: Yarnold, Matthew (advisor), Haque, Mohammed (committee member), Sideris, Petros (committee member).

Subjects/Keywords: Bridges; Structural Engineering; Transportation; Platoons; Automation; TxDOT; Truck Platoon

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6th Edition):

Pillay Thulaseedharan, N. (2020). Impact of Truck Platooning on Texas Bridges. (Masters Thesis). Texas A&M University. Retrieved from http://hdl.handle.net/1969.1/191819

Chicago Manual of Style (16th Edition):

Pillay Thulaseedharan, Nandhu. “Impact of Truck Platooning on Texas Bridges.” 2020. Masters Thesis, Texas A&M University. Accessed April 15, 2021. http://hdl.handle.net/1969.1/191819.

MLA Handbook (7th Edition):

Pillay Thulaseedharan, Nandhu. “Impact of Truck Platooning on Texas Bridges.” 2020. Web. 15 Apr 2021.

Vancouver:

Pillay Thulaseedharan N. Impact of Truck Platooning on Texas Bridges. [Internet] [Masters thesis]. Texas A&M University; 2020. [cited 2021 Apr 15]. Available from: http://hdl.handle.net/1969.1/191819.

Council of Science Editors:

Pillay Thulaseedharan N. Impact of Truck Platooning on Texas Bridges. [Masters Thesis]. Texas A&M University; 2020. Available from: http://hdl.handle.net/1969.1/191819


University of Michigan

3. Sun, Xiaotong. Facilitating Cooperative Truck Platooning for Energy Savings: Path Planning, Platoon Formation and Benefit Redistribution.

Degree: PhD, Civil Engineering, 2020, University of Michigan

Enabled by the connected and automated vehicle (CAV) technology, cooperative truck platooning that offers promising energy savings is likely to be implemented soon. However, as the trucking industry operates in a highly granular manner so that the trucks usually vary in their operation schedules, vehicle types and configurations, it is inevitable that 1) the spontaneous platooning over a spatial network is rare, 2) the total fuel savings vary from platoon to platoon, and 3) the benefit achieved within a platoon differs from position to position, e.g., the lead vehicle always achieves the least fuel-saving. Consequently, trucks from different owners may not have the opportunities to platoon with others if no path coordination is performed. Even if they happen to do so, they may tend to change positions in the formed platoons to achieve greater benefits, yielding behaviorally unstable platoons with less energy savings and more disruptions to traffic flows. This thesis proposes a hierarchical modeling framework to explicate the necessitated strategies that facilitate cooperative truck platooning. An empirical study is first conducted to scrutinize the energy-saving potentials of the U.S. national freight network. By comparing the performance under scheduled platooning and ad-hoc platooning, the author shows that the platooning opportunities can be greatly improved by careful path planning, thereby yielding substantial energy savings. For trucks assembled on the same path and can to platoon together, the second part of the thesis investigates the optimal platoon formation that maximizes total platooning utility and benefits redistribution mechanisms that address the behavioral instability issue. Both centralized and decentralized approaches are proposed. In particular, the decentralized approach employs a dynamic process where individual trucks or formed platoons are assumed to act as rational agents. The agents decide whether to form a larger, better platoon considering their own utilities under the pre-defined benefit reallocation mechanisms. Depending on whether the trucks are single-brand or multi-brand, whether there is a complete information setting or incomplete information setting, three mechanisms, auction, bilateral trade model, and one-sided matching are proposed. The centralized approach yields a near-optimal solution for the whole system and is more computationally efficient than conventional algorithms. The decentralized approach is stable, more flexible, and computational efficient while maintaining acceptable degrees of optimality. The mechanisms proposed can apply to not only under the truck platooning scenario but also other forms of shared mobility. Advisors/Committee Members: Yin, Yafeng (committee member), Shen, Siqian May (committee member), Liu, Henry (committee member), Masoud, Neda (committee member).

Subjects/Keywords: cooperative truck platooning; energy-saving potentials; benefit reallocation mechanisms; optimal platoon formation; shared mobility; Civil and Environmental Engineering; Engineering

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6th Edition):

Sun, X. (2020). Facilitating Cooperative Truck Platooning for Energy Savings: Path Planning, Platoon Formation and Benefit Redistribution. (Doctoral Dissertation). University of Michigan. Retrieved from http://hdl.handle.net/2027.42/163047

Chicago Manual of Style (16th Edition):

Sun, Xiaotong. “Facilitating Cooperative Truck Platooning for Energy Savings: Path Planning, Platoon Formation and Benefit Redistribution.” 2020. Doctoral Dissertation, University of Michigan. Accessed April 15, 2021. http://hdl.handle.net/2027.42/163047.

MLA Handbook (7th Edition):

Sun, Xiaotong. “Facilitating Cooperative Truck Platooning for Energy Savings: Path Planning, Platoon Formation and Benefit Redistribution.” 2020. Web. 15 Apr 2021.

Vancouver:

Sun X. Facilitating Cooperative Truck Platooning for Energy Savings: Path Planning, Platoon Formation and Benefit Redistribution. [Internet] [Doctoral dissertation]. University of Michigan; 2020. [cited 2021 Apr 15]. Available from: http://hdl.handle.net/2027.42/163047.

Council of Science Editors:

Sun X. Facilitating Cooperative Truck Platooning for Energy Savings: Path Planning, Platoon Formation and Benefit Redistribution. [Doctoral Dissertation]. University of Michigan; 2020. Available from: http://hdl.handle.net/2027.42/163047

.